Near-surface snow density at Concordia Station, Antarctica

This dataset reports the snow density observations at the Concordia Station, Antarctica. A snow trench is dig once per month (or every three months during winter) in the clean area near the Station (< 1 km). Four measurements are taken inserting a core barrel (with a diameter of 4.5 cm and a length of 25 cm) horizontally into the snow at 10 cm depth, and four more measurements are taken inserting another core barrel (with a diameter of 3.7 cm and a length of 9.2 cm) vertically, from the surface to 10 cm depth. The snow density is calculated from the weight.

本数据集收录南极康科迪亚站（Concordia Station）的雪密度观测资料。研究人员每月（冬季时段则改为每三个月）在站点周边1千米范围内的洁净区域开挖雪坑。具体测量流程为：将直径4.5厘米、长度25厘米的取芯筒（core barrel）水平插入雪层10厘米深度处，完成4次测量；再使用直径3.7厘米、长度9.2厘米的另一款取芯筒，从地表垂直插入至10厘米深度，完成额外4次测量。雪密度通过样本重量计算得出。